An sprawling estate on Ellison Bay in Door County, Wis., is set to hit the auction block Wednesday.

The property is being offered in four parcels, including one that includes the 35,000 square-foot main house, which some say is the largest house in Wisconsin. The auction company that's marketing the property said called it "One of the grandest mansions ever built." The main house - called Sur La Baie, has its own 14-seat Art Deco theather, a 5,000 square-foot master suite and an indoor pool and spa. You can check it out by clicking on this link.

The house was built by philanthropist Judith Blazer, whose grandfather founded a company that's now part of Illinois Tool Works. The house has 43 rooms and took three years to build, and the people who bought it from Blazer never lived in the house. The property will be auctioned by Hilco Real Estate Auctions with marketing help from Jameson Sotheby's International Realty.